Battery energy storage
Solar's investment credit closes for projects placed in service after 2027 unless they were safe-harbored. Storage keeps the 30% credit for construction starts through 2033. That makes batteries the durable investment — and integration the skill worth buying.
What we do
We work as the engineering and construction arm for battery projects: reading the use case, sizing the system against it, installing it and proving it works. Standalone or co-located with existing solar, wind or thermal generation.
Our team has integrated containerized systems in utility-scale service, including Tesla Megapack and Powerpack platforms, and residential and commercial Powerwall installations.
Where storage earns
Batteries added to solar or wind that is already interconnected. Uses an existing point of interconnection — the scarcest asset in a market with five-to-eight-year queues.
Standalone systems providing capacity, frequency response and ramping. Sizing driven by market rules and dispatch, not by rules of thumb.
Behind-the-meter storage for facilities where an outage costs more per hour than the system costs per year. Peak shaving where tariffs reward it.
Where the grid is fragile, storage stops being an optimization and becomes a condition of operation. Puerto Rico taught us this the hard way.
Generation, storage and controls that can island and resynchronize, for campuses, plants and remote operations.
Adding capacity to systems already in service, replacing degraded modules and re-tuning controls against how the asset is actually dispatched.
A note on procurement
For projects beginning construction after December 31, 2025, a minimum share of manufactured product cost must come from non-prohibited-foreign-entity sources, and that threshold tightens each year. The practical effect is that procurement decisions now carry documentation risk, not just price risk. We build the sourcing record as the project is built, because reconstructing it afterwards is where projects lose credit value.
General information, current as of August 2026, based on the 2025 budget reconciliation act and guidance issued to date. Rules are subject to change and their application depends on project-specific facts. Confirm with your own tax counsel.
Talk to engineering
Sizing a storage system without reading the dispatch is how projects end up oversized, undersized or degrading faster than the model assumed. Tell us what it has to do and we will tell you what it takes.
+1 (212) 220-8594
supply.solutions@oneenergyamerica.com
One World Trade Center, 85th Floor, New York, NY 10007
The group
An energy engineering company with its own operations in the United States, Canada and Brazil — with Portugal on the way. Same technical team, same execution standards, adapted to each market.